User blog comment:Hayds126/New abilitideas (continue from new moves)/@comment-32523148-20180224150054

My idea is "Aqua pressure": negate all water-absorb abilities and Water-type moves deal double (or x3/2 if it is too OP) damage to Grass, Ice and Steel type pokemons in cost dealing x1/4 (or x1/3) damage to Water type instead of x1/2. It is exclusive ability of hidden abilities and Water type pokemon.